SADEV M7x30 Screw 0301465C | Renault Twingo R2

The risks of improper or rusted gearbox hardware: what your race drivetrain stands to lose

In a sequential transmission subjected to severe vibrations, humidity, and strict tightening torques, using untreated standard hardware or reusing stretched bolts exposes your drivetrain to severe mechanical failure. A broken, rusted, or backed-out M7 socket screw during a track session can cause casing separation, sudden oil loss, and catastrophic damage to costly gears or dog rings.

The specific M7 thread pitch is particularly demanding: generic bolts with improper tolerances risk stripping the aluminum threads on your SADEV casings. Choosing the SADEV M7x30 Class 10.9 zinc-plated (ZN) high-tensile socket head cap screw (reference 0301465C) ensures a tensile strength of 1000 N/mm² alongside maximum corrosion protection provided by its electrolytic zinc surface treatment (ZN).

Certified by SADEV, the global leader in competition transmissions, this Allen / CHC socket head Class 10.9 zinc-plated (ZN) screw ensures structural rigidity and flawless assembly for your ST90 sequential gearbox.

Class 10.9 strength rating, ZN zinc protection, and official SADEV dimensions

Featuring a calibrated M7 thread, a 30 mm under-head length, ZN anti-corrosion coating, and a hexagonal socket head (CHC / Allen), this official SADEV screw meets the exacting demands of motorsport. It is an indispensable item for meticulous mechanical maintenance or technical customization of your performance vehicle.

Compatible vehicle models list

This SADEV M7x30 CL10.9 ZN screw (Ref: 0301465C) directly fits the transmissions and casings of the following models:

• Renault Twingo R2

Secure your competition gearboxes with the expertise of Optimiz Access

Since 2010, Optimiz Access has distributed OEM components, specialized hardware, and precision hardware for the customization and maintenance of sports vehicles and premium marques (Renault Sport, Audi, Volkswagen, Porsche, Mercedes, and BMW). Located in Northern France—closely serving Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin—our technicians overhaul and prepare racing mechanical assemblies. We guarantee meticulous packaging and fast shipping across France and worldwide.

Frequently Asked Questions about SADEV M7x30 ZN Screw 0301465C (FAQ)

What does the ZN designation mean on this SADEV bolt?
ZN indicates an electrolytic zinc-plated finish providing superior resistance against oxidation, atmospheric moisture, and mechanical fluids.

Why is Class 10.9 essential on a SADEV race gearbox?
Class 10.9 provides a high yield strength, which is vital to resist intense shear forces and dynamic vibrations on track without deformation.

Secure your racing transmission hardware today

Do not take chances with your gearbox fasteners. Demand certified original SADEV quality distributed by Optimiz Access under reference 0301465C and order your hardware today.

Note: SADEV O-ring seals, adjustment shims, competition gear oils, and complete overhaul kits are available for purchase at the bottom of this product page.